YARN prometheus exporter

Export YARN metrics in Prometheus format.

Build

Requires Go. Tested with Go 1.9+.

go get
go build -o yarn-prometheus-exporter .

Run

The exporter can be configured using environment variables. These are the defaults:

YARN_PROMETHEUS_LISTEN_ADDR=:9113
YARN_PROMETHEUS_ENDPOINT_SCHEME=http
YARN_PROMETHEUS_ENDPOINT_HOST=localhost
YARN_PROMETHEUS_ENDPOINT_PORT=8088

Run the exporter:

./yarn-prometheus-exporter

The metrics can be scraped from:

http://localhost:9113/metrics

Run using docker

Run using docker:

docker run -p 9113:9113 pbweb/yarn-prometheus-exporter

Or using docker-compose:

services:
    image: pbweb/yarn-prometheus-exporter
    restart: always
    environment:
        - "YARN_PROMETHEUS_ENDPOINT_HOST=yarn.hadoop.lan"
    ports:
        - "9113:9113"

Kerberos support

If you run kerberized cluster, you can add support via next environment variables:

YARN_KERBEROS_CONFIG=/etc/krb5.conf
YARN_KERBEROS_KEYTAB=/path/to/file.keytab
YARN_KERBEROS_PRINCIPAL=username@real

License

See LICENSE.md